APA (7th ed.) Zitazioa

Gilson, J. (1989). World agricultural changes: Implications for Canada. Howe.

Chicago Style (17th ed.) Zitazioa

Gilson, J.C. World Agricultural Changes: Implications for Canada. Toronto: Howe, 1989.

MLA (9th ed.) Zitazioa

Gilson, J.C. World Agricultural Changes: Implications for Canada. Howe, 1989.